By the time John Wall smacked New York Knicks guard Iman Shumpert’s layup attempt into the first row and angrily cursed, most of the orange-and-blue clad supporters had already trickled out of Verizon Center, leaving the Washington Wizards and their fans to celebrate an impressive, 98-89 victory.

Wall wants the Wizards to establish themselves as a dominant home team, but they had a difficult challenge Saturday with so many in the building rooting against them. Whenever a Knicks player scored, cheers filled the arena, making it hard to distinguish which team was actually at home. Though the Wizards probably didn’t convert any New York fans, they had no problem throttling the reeling Knicks.

Wall led the charge by scoring 31 points with seven assists, four rebounds and an emphatic block on Shumpert in the final seconds that brought Wizards fans to their feet and sent a clear statement about the true tenants.

“I’m sitting there like, ‘This is amazing,’ ” Wall said of the overwhelming sea of Knicks fans. “We’re trying to change that, so it don’t happen at all. We can’t control it. It’s great we’ve got some fans on our side.”

The Wizards (5-8) might have a few more now that they have won three of their past four and snapped a two-game losing streak against the Knicks, who have lost five in a row. Washington again had a poor effort from its bench — which contributed only six points as Coach Randy Wittman used just eight players — but the starters more than carried the load.

Despite playing a fourth game in five nights, Wall wasn’t lacking for speed or energy. Picking up where he left off Friday night in Toronto — when he scored a season-high 37 points — Wall kept finding the cracks in the Knicks defense and repeatedly attacked the rim. He also coolly dropped jumpers from the right elbow.

Wall made his first seven field goals and scored 19 points in the first half. He has scored at least 30 point in consecutive games for the first time in his career and has shot 25 of 39 his past two games. In his previous four games, Wall combined to make 19 of 65 shots and scored a total of 52.